GM Service Manual Online
For 1990-2009 cars only

Object Number: 1202332  Size: A1

With the power door locks, you can unlock or lock all of the doors on your vehicle using either the driver's or front passenger's door lock switch.

Push down the right part of the switch to unlock the doors. Push down on the left part of the switch to lock the doors.

The driver's door must be closed in order to lock the doors. If the driver's door is open while trying to lock the doors using either of these switches, the doors will not lock.